Yielding stuffing-box.



N. 713,4". Patented Nov. Il, |902.

YIELDING` STUFFING BOX.

(Appliction led Jan. 19, 1901. Renewed Aug. 11, 1902.)

(No Model.)

WnjNEEEES L@ @Mm UNTTnn STnTns nTnNT CFFICE.

CARL ENDRUWEIT, OF BERLIN, GERMANY.

YIELDING STUFFlNG-BOX.

SPECIFICATION forming part of Letters Patent No. 713,411, dated November11, 1902.

Application filed January 19x 1901. Renewed August 11, 1902. Seria-l No.119,814. (No model.)

To all whom/ t may concern:

Be it known that I, CARL ENDRUWEIT, engineer, of Dalldorferstrasse 16,Berlin, Germany, have invented a new and useful Improvement in YieldingStuffing- Boxes, of which the following is a specicatiou.

My invention relates to improvements in engine stuffing-boxes; and theobject of my improvement is Ato produce a stuffing-box which isabsolutely steam or gas tight and which also affords a certain degree offlexibility in order to avoid undue friction upon the sliding orrotating rods which are intended to be tightly guided in or through suchboxes. I attain these objects in a stuffingbox constructed and equippedas shown in the accompanying drawings, in which- Figure l is a centralsectional view of a stuffing-box possessing features of merit as abovereferred to. Fig. 2 illustrates a detail of construction hereinafter`referred to, and Fig. 3 illustrates a modilication in the constructionof such boxes.

Like letters of reference denote like parts of drawings andspecification.

In the drawings, A represents a partial view of a cylinder-lid,projecting out from which is the flanged cylindrical casing A', which isadapted to receive the members constituting a stufng-box, as abovereferred to. To the flange f is gas-tightly secured the ring p. The boreof said ring is tapering inwardly, and secured therewith is a coneshell, which consists of laminated sheet metal. The sheets n being ofordinary paper' thickness and preferably perforated, as shown at l, (seeFig. 2,) with the exception of the outer sheet or mantle 0, which issolid. The rolled sheets are so fitted into each other or laminated thatthe perforations of any one sheet become covered by the solid part ofthe adjoining sheet or sheets. At the lower or inner terminal all thesheets are united by welding, brazing, or soldering, and, furthermore,securely connected therewith is the box b, which contains the packingmaterial, same being held confined between the bottom c and sleeve CZ.The upper or outer face of said sleeve is slightly rounded, and forcedagainst said face is the stuffing-box gland by means of the screws orstuds s.

In building up the above-mentioned cone shell of sheet or leaf materialsame becomes a more or less pliable structure, and thus serves as ayielding support for the stuffingbox b, enabling the latter toaccommodate itself to the position or alinement of the piston rod. Henceundue friction upon the piston-rod is eliminated, and the latter caneasily be kept in absolutely tight condition without appreciable wearupon the piston-rod.

Fig. 3 illustrates a modification in the form and manner of securing orholding the shell in position. Furthermore, said shell may be laminatedof material wound in spiral form as well as cylindrical form, the chiefobject of this invention being in the application of a yielding memberfor support of the packing material for piston-rods, tc.

What I claim, and desire to secure by Letters Patent, is-

1. In a stuffing-box for piston-rods, dec., a cone shell consisting oflaminated material and an internal box containing the packing materialthe outer extremity of said shell be-v ing secured to an external casingand the inner extremity supporting said box at or near its innerterminal and suitable means enabling compression of said packingmaterial all constructed and arranged substantially as and for thepurposes set forth.

2. A stuffing-box for piston-rods, dto., comprising an internalreceptacle for the packing material and a pliable cone shell, the saidshell being supported by an external casing and the said receptaclehaving connection with said shell in such manner as to afford yieldingaccommodation of the packing with regard to the piston-rod substantiallyin the manner as and-for the purpose set forth.

3. For piston-rods, the., the combination of an external casing, aninternal box containing packing material, a laminated cone shell andsuitable means for compressing said packing material and all parts beingrelatively secured and arranged substantially in the manner as and forthe purpose set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

CARL ENDRUWEIT.

Witnesses:

WM. SHIEBING, HENRY HASPER.

